Square metre
Square metre
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Comparison of 1 square metre with some Imperial and metric units of area
The square metre (International spelling as used by the International Bureau of Weights and Measures) or square meter (American spelling) is the SI derived unit of area, with symbol m2.[1]
Adding and subtracting SI prefixes creates multiples and submultiples; however, as the unit is exponentiated, the quantities grow geometrically by the corresponding power of 10. For example, a kilometre is 103 (a thousand) times the length of a metre, but a square kilometre is 1032 (106, a million) times the area of a square metre, and a cubic kilometre is 1033 (109, a billion) cubic metres.
Contents
1 SI prefixes applied
2 Conversions
3 See also
4 Notes
5 External links
SI prefixes applied[edit]
The square metre may be used with all SI prefixes used with the metre.
| Multiplication | Name | Symbol | Multiplication | Name | Symbol | |
|---|---|---|---|---|---|---|
| 100 | square metre (centiare) | m2 | 100 | square metre (centiare) | m2 | |
| 102 | square decametre (are) | dam2 | 10−2 | square decimetre | dm2 | |
| 104 | square hectometre (hectare) | hm2 | 10−4 | square centimetre | cm2 | |
| 106 | square kilometre | km2 | 10−6 | square millimetre | mm2 | |
| 1012 | square megametre | Mm2 | 10−12 | square micrometre | µm2 | |
| 1018 | square gigametre | Gm2 | 10−18 | square nanometre | nm2 | |
| 1024 | square terametre | Tm2 | 10−24 | square picometre | pm2 | |
| 1030 | square petametre | Pm2 | 10−30 | square femtometre | fm2 | |
| 1036 | square exametre | Em2 | 10−36 | square attometre | am2 | |
| 1042 | square zettametre | Zm2 | 10−42 | square zeptometre | zm2 | |
| 1048 | square yottametre | Ym2 | 10−48 | square yoctometre | ym2 |
Conversions[edit]
A square metre is equal to:
6994100000000000000♠0.000001 square kilometre (km2)
7004100000000000000♠10000 square centimetres (cm2)
6996100000000000000♠0.0001 hectares (ha)
6997100000000000000♠0.001 decares (daa)
6998100000000000000♠0.01 ares (a)
6999100000000000000♠0.1 deciares (da)
7000100000000000000♠1 centiare (ca)
6996247105381000000♠0.000247105381 acres
6998247105380000000♠0.024710538 cents
7000119599000000000♠1.195990 square yards
7001107639110000000♠10.763911 square feet
7003155000310000000♠1550.0031 square inches
See also[edit]
- Conversion of units § Area
- Orders of magnitude (area)
- SI
- SI prefix
Notes[edit]
^ David R. Lide, ed. (2010), "INTERNATIONAL SYSTEM OF UNITS", CRC Handbook of Chemistry and Physics (90th ed.).mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
External links[edit]
BIPM (SI maintenance agency) (home page)
BIPM brochure (SI reference)
Categories:
- Units of area
- SI derived units
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